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1、机械制造质量分析与控制一、加工精度加工精度:几何参数符合程度;加工误差:几何参数偏离大小;加工经济精度:正常加工条件下:标准设备、工艺装备、技术等级的工人、加工时间。urbanarea2.5.2YibincityinYibincity,accordingtoresourceandenvironmentcharacteristicsUrbanpopulationandurbanspatialdistribution,spatialdistributionofindustries,majorinfrastructureCorridorlayo
2、ut,combinedwiththefuturedevelopmenttrendofsyntheticjudgments,planning,urbanspatialstructureofurbansystemcanbesummarizedas:"apolealongthetwoaxes"."A"referstothemetropolitanareaalongtheYangtzeRiver,isthecoreareaofthedevelopmentofthecity.PlanstobuildfortheYangtzeRivereconomi
3、cbeltonthepillar,advancingalongthe...GuangheRiver,Yiliang,prestigeoftheexternalcohesionofzhaotong,Yunnan,internalconnectingYibincitytotheNorth.TheSichuan-Yunnan-GuizhouborderareaofYibin,inthecityofzhaotong,liupanshuithree,zhaotongcity,themostpopulousandmostextensiveregion
4、s,themosteconomicallybackward,totheNorthinWumengmountainareaofyanjin,shuifu,suijiangcountiesradiationpowerisrelativelyweak.Yibincityandinfrastructureinsuchareasshouldbestrengthenedanddocking,extendingsouthwardtopublicservices,promotethedevelopmentofmineralresourcesinNorth
5、eastYunnan,expandoureconomichinterland,drivingsynchronousliftinginSichuan-Yunnan-Guizhouborderarea.Thisurbanaxiswithmineralresourceadvantages,focusonthedevelopmentofadvancedtechnology,comprehensiveutilizationofresourcesofhigherenergy,newbuildingmaterials,chemicalindustry,
6、developingnewenergyandminingtowns.Urbanspaceorganization-ingongxianCounty,Gao,junlianCountyCenterforareaorganizations,improve,Gao,Gong,junlianCountycomprehensiveservices,andpromotingregionaleconomicdevelopmentandpopulationgrowthoftheagglomeration.Alongthemaintrafficarteri
7、estoimplement"point-axisdevelopment"modekeyrepeatedly,Shahetown,XiaoZhen,LuotableZhen,Luotown,loveMuZhenandothertownsasdistrictdevelopmentfocusesoncitiesandtowns,promotethedevelopmentofdistrict二、获得精度方法:1形状:轨迹法------成形运动精度成形法------刀具、安装展成法------刀具、传动链2位置:机床、夹具精度3尺寸:试切法定尺寸刀
8、具调整法自动控制法urbanarea2.5.2YibincityinYibincity,accordingtoresourceandenvironmentcharacteristicsUrba